// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "ui/wm/core/visibility_controller.h"

#include "ui/aura/test/aura_test_base.h"
#include "ui/aura/test/test_window_delegate.h"
#include "ui/aura/test/test_windows.h"
#include "ui/aura/window.h"
#include "ui/aura/window_event_dispatcher.h"
#include "ui/compositor/layer.h"
#include "ui/compositor/layer_animator.h"
#include "ui/compositor/scoped_animation_duration_scale_mode.h"
#include "ui/compositor/scoped_layer_animation_settings.h"
#include "ui/wm/core/window_animations.h"

namespace wm {

typedef aura::test::AuraTestBase VisibilityControllerTest;

// Check that a transparency change to 0 will not cause a hide call to be
// ignored.
TEST_F(VisibilityControllerTest, AnimateTransparencyToZeroAndHideHides)
{
    // We cannot disable animations for this test.
    ui::ScopedAnimationDurationScaleMode test_duration_mode(
        ui::ScopedAnimationDurationScaleMode::NON_ZERO_DURATION);

    VisibilityController controller;
    aura::client::SetVisibilityClient(root_window(), &controller);

    SetChildWindowVisibilityChangesAnimated(root_window());

    aura::test::TestWindowDelegate d;
    scoped_ptr<aura::Window> window(aura::test::CreateTestWindowWithDelegate(
        &d, -2, gfx::Rect(0, 0, 50, 50), root_window()));
    ui::ScopedLayerAnimationSettings settings(window->layer()->GetAnimator());
    settings.SetTransitionDuration(base::TimeDelta::FromMilliseconds(5));

    EXPECT_TRUE(window->layer()->visible());
    EXPECT_TRUE(window->IsVisible());

    window->layer()->SetOpacity(0.0);
    EXPECT_TRUE(window->layer()->visible());
    EXPECT_TRUE(window->IsVisible());
    EXPECT_TRUE(window->layer()->GetAnimator()->IsAnimatingProperty(ui::LayerAnimationElement::OPACITY));
    EXPECT_EQ(0.0f, window->layer()->GetTargetOpacity());

    // Check that the visibility is correct after the hide animation has finished.
    window->Hide();
    window->layer()->GetAnimator()->StopAnimating();
    EXPECT_FALSE(window->layer()->visible());
    EXPECT_FALSE(window->IsVisible());
}

// Test if SetWindowVisibilityChagngesAnimated will animate the specified
// window.
TEST_F(VisibilityControllerTest, SetWindowVisibilityChagnesAnimated)
{
    // We cannot disable animations for this test.
    ui::ScopedAnimationDurationScaleMode test_duration_mode(
        ui::ScopedAnimationDurationScaleMode::NON_ZERO_DURATION);

    VisibilityController controller;
    aura::client::SetVisibilityClient(root_window(), &controller);

    aura::test::TestWindowDelegate d;
    scoped_ptr<aura::Window> window(aura::test::CreateTestWindowWithDelegate(
        &d, -2, gfx::Rect(0, 0, 50, 50), root_window()));
    // Test using Show animation because Hide animation detaches the window's
    // layer.
    window->Hide();
    ASSERT_FALSE(window->IsVisible());

    SetWindowVisibilityChangesAnimated(window.get());
    SetWindowVisibilityAnimationDuration(window.get(),
        base::TimeDelta::FromMilliseconds(5));
    SetWindowVisibilityAnimationType(window.get(),
        WINDOW_VISIBILITY_ANIMATION_TYPE_FADE);
    window->Show();
    EXPECT_TRUE(window->layer()->GetAnimator()->is_animating());
    EXPECT_EQ(1.0f, window->layer()->GetTargetOpacity());
    EXPECT_EQ(0.0f, window->layer()->opacity());

    window->layer()->GetAnimator()->StopAnimating();
    EXPECT_EQ(1.0f, window->layer()->GetTargetOpacity());
    EXPECT_EQ(1.0f, window->layer()->opacity());
}

} // namespace wm
